id sid tid token lemma pos eblip-69 1 1 microsoft microsoft PROPN eblip-69 1 2 word word NOUN eblip-69 1 3 es_hook.doc es_hook.doc X eblip-69 1 4 evidence evidence NOUN eblip-69 1 5     SPACE eblip-69 1 6 based base VERB eblip-69 1 7     SPACE eblip-69 1 8 library library NOUN eblip-69 1 9     SPACE eblip-69 1 10 and and CCONJ eblip-69 1 11     SPACE eblip-69 1 12 information information NOUN eblip-69 1 13     SPACE eblip-69 1 14 practice practice NOUN eblip-69 1 15     SPACE eblip-69 1 16 2006 2006 NUM eblip-69 1 17 , , PUNCT eblip-69 1 18     SPACE eblip-69 1 19 1:3 1:3 NUM eblip-69 1 20             SPACE eblip-69 1 21 67 67 NUM eblip-69 1 22 evidence evidence NOUN eblip-69 1 23     SPACE eblip-69 1 24 based base VERB eblip-69 1 25     SPACE eblip-69 1 26 library library NOUN eblip-69 1 27     SPACE eblip-69 1 28 and and CCONJ eblip-69 1 29     SPACE eblip-69 1 30 information information NOUN eblip-69 1 31     SPACE eblip-69 1 32 practice practice NOUN eblip-69 1 33             SPACE eblip-69 1 34 evidence evidence NOUN eblip-69 1 35     SPACE eblip-69 1 36 summary summary NOUN eblip-69 1 37         SPACE eblip-69 1 38 study study NOUN eblip-69 1 39     SPACE eblip-69 1 40 of of ADP eblip-69 1 41     SPACE eblip-69 1 42 search search NOUN eblip-69 1 43     SPACE eblip-69 1 44 engine engine NOUN eblip-69 1 45     SPACE eblip-69 1 46 transaction transaction NOUN eblip-69 1 47     SPACE eblip-69 1 48 logs log NOUN eblip-69 1 49     SPACE eblip-69 1 50 shows show VERB eblip-69 1 51     SPACE eblip-69 1 52 little little ADJ eblip-69 1 53     SPACE eblip-69 1 54 change change NOUN eblip-69 1 55     SPACE eblip-69 1 56 in in ADP eblip-69 1 57     SPACE eblip-69 1 58 how how SCONJ eblip-69 1 59     SPACE eblip-69 1 60 users user NOUN eblip-69 1 61     SPACE eblip-69 1 62 use use VERB eblip-69 1 63     SPACE eblip-69 1 64 search search NOUN eblip-69 1 65     SPACE eblip-69 1 66 engines engine NOUN eblip-69 1 67     SPACE eblip-69 1 68 a a DET eblip-69 1 69     SPACE eblip-69 1 70 review review NOUN eblip-69 1 71     SPACE eblip-69 1 72 of of ADP eblip-69 1 73 : : PUNCT eblip-69 1 74     SPACE eblip-69 1 75 jansen jansen PROPN eblip-69 1 76 , , PUNCT eblip-69 1 77     SPACE eblip-69 1 78 bernard bernard PROPN eblip-69 1 79     SPACE eblip-69 1 80 j. j. PROPN eblip-69 1 81 , , PUNCT eblip-69 1 82     SPACE eblip-69 1 83 and and CCONJ eblip-69 1 84     SPACE eblip-69 1 85 amanda amanda PROPN eblip-69 1 86     SPACE eblip-69 1 87 spink spink PROPN eblip-69 1 88 . . PUNCT eblip-69 1 89     SPACE eblip-69 2 1 “ " PUNCT eblip-69 2 2 how how SCONJ eblip-69 2 3     SPACE eblip-69 2 4 are be AUX eblip-69 2 5     SPACE eblip-69 2 6 we we PRON eblip-69 2 7     SPACE eblip-69 2 8 searching search VERB eblip-69 2 9     SPACE eblip-69 2 10 the the DET eblip-69 2 11     SPACE eblip-69 2 12 world world NOUN eblip-69 2 13     SPACE eblip-69 2 14 wide wide ADJ eblip-69 2 15     SPACE eblip-69 2 16 web web NOUN eblip-69 2 17 ? ? NOUN eblip-69 2 18     SPACE eblip-69 2 19 a a DET eblip-69 2 20     SPACE eblip-69 2 21 comparison comparison NOUN eblip-69 2 22     SPACE eblip-69 2 23 of of ADP eblip-69 2 24     SPACE eblip-69 2 25 nine nine NUM eblip-69 2 26     SPACE eblip-69 2 27 search search NOUN eblip-69 2 28     SPACE eblip-69 2 29 engine engine NOUN eblip-69 2 30     SPACE eblip-69 2 31 transaction transaction NOUN eblip-69 2 32     SPACE eblip-69 2 33 logs log NOUN eblip-69 2 34 . . PUNCT eblip-69 2 35 ” " PUNCT eblip-69 2 36     SPACE eblip-69 2 37 information information NOUN eblip-69 2 38     SPACE eblip-69 2 39 processing processing NOUN eblip-69 2 40     SPACE eblip-69 2 41 & & CCONJ eblip-69 2 42     SPACE eblip-69 2 43 management management NOUN eblip-69 2 44     SPACE eblip-69 2 45 42.1 42.1 NUM eblip-69 2 46     SPACE eblip-69 2 47 ( ( PUNCT eblip-69 2 48 2006 2006 NUM eblip-69 2 49 ): ): PUNCT eblip-69 2 50     SPACE eblip-69 2 51 248‐263 248‐263 NUM eblip-69 2 52 . . PUNCT eblip-69 2 53         SPACE eblip-69 2 54 reviewed review VERB eblip-69 2 55     SPACE eblip-69 2 56 by by ADP eblip-69 2 57 : : PUNCT eblip-69 2 58     SPACE eblip-69 2 59 david david PROPN eblip-69 2 60     SPACE eblip-69 2 61 hook hook NOUN eblip-69 2 62     SPACE eblip-69 2 63 manager manager NOUN eblip-69 2 64 , , PUNCT eblip-69 2 65     SPACE eblip-69 2 66 operations operation NOUN eblip-69 2 67     SPACE eblip-69 2 68 information information NOUN eblip-69 2 69     SPACE eblip-69 2 70 and and CCONJ eblip-69 2 71     SPACE eblip-69 2 72 configuration configuration NOUN eblip-69 2 73     SPACE eblip-69 2 74 management management NOUN eblip-69 2 75 , , PUNCT eblip-69 2 76     SPACE eblip-69 2 77 mda mda PROPN eblip-69 2 78       SPACE eblip-69 2 79 brampton brampton PROPN eblip-69 2 80 , , PUNCT eblip-69 2 81     SPACE eblip-69 2 82 ontario ontario PROPN eblip-69 2 83 , , PUNCT eblip-69 2 84     SPACE eblip-69 2 85 canada canada PROPN eblip-69 2 86     SPACE eblip-69 2 87 e‐mail e‐mail SYM eblip-69 2 88 : : PUNCT eblip-69 2 89     SPACE eblip-69 2 90 david.hook@mdacorporation.com david.hook@mdacorporation.com X eblip-69 2 91         SPACE eblip-69 2 92 received receive VERB eblip-69 2 93 : : PUNCT eblip-69 2 94     SPACE eblip-69 2 95 02 02 NUM eblip-69 2 96     SPACE eblip-69 2 97 june june PROPN eblip-69 2 98     SPACE eblip-69 2 99 2006 2006 NUM eblip-69 2 100                           SPACE eblip-69 2 101 accepted accept VERB eblip-69 2 102 : : PUNCT eblip-69 2 103     SPACE eblip-69 2 104 18 18 NUM eblip-69 2 105     SPACE eblip-69 2 106 june june PROPN eblip-69 2 107     SPACE eblip-69 2 108 2006 2006 NUM eblip-69 2 109             SPACE eblip-69 2 110 © © PROPN eblip-69 2 111     SPACE eblip-69 2 112 2006 2006 NUM eblip-69 2 113     SPACE eblip-69 2 114 hook hook NOUN eblip-69 2 115 . . PUNCT eblip-69 2 116     SPACE eblip-69 3 1 this this PRON eblip-69 3 2     SPACE eblip-69 3 3 is be AUX eblip-69 3 4     SPACE eblip-69 3 5 an an DET eblip-69 3 6     SPACE eblip-69 3 7 open open ADJ eblip-69 3 8     SPACE eblip-69 3 9 access access NOUN eblip-69 3 10     SPACE eblip-69 3 11 article article NOUN eblip-69 3 12     SPACE eblip-69 3 13 distributed distribute VERB eblip-69 3 14     SPACE eblip-69 3 15 under under ADP eblip-69 3 16     SPACE eblip-69 3 17 the the DET eblip-69 3 18     SPACE eblip-69 3 19 terms term NOUN eblip-69 3 20     SPACE eblip-69 3 21 of of ADP eblip-69 3 22     SPACE eblip-69 3 23 the the DET eblip-69 3 24     SPACE eblip-69 3 25 creative creative ADJ eblip-69 3 26     SPACE eblip-69 3 27 commons common NOUN eblip-69 3 28     SPACE eblip-69 3 29 attribution attribution NOUN eblip-69 3 30     SPACE eblip-69 3 31 license license NOUN eblip-69 3 32     SPACE eblip-69 3 33 ( ( PUNCT eblip-69 3 34 http://creativecommons.org/licenses/by/2.0 http://creativecommons.org/licenses/by/2.0 PROPN eblip-69 3 35 ) ) PUNCT eblip-69 3 36 , , PUNCT eblip-69 3 37     SPACE eblip-69 3 38 which which PRON eblip-69 3 39     SPACE eblip-69 3 40 permits permit VERB eblip-69 3 41     SPACE eblip-69 3 42 unrestricted unrestricted ADJ eblip-69 3 43     SPACE eblip-69 3 44 use use NOUN eblip-69 3 45 , , PUNCT eblip-69 3 46     SPACE eblip-69 3 47 distribution distribution NOUN eblip-69 3 48 , , PUNCT eblip-69 3 49     SPACE eblip-69 3 50 and and CCONJ eblip-69 3 51     SPACE eblip-69 3 52 reproduction reproduction NOUN eblip-69 3 53     SPACE eblip-69 3 54 in in ADP eblip-69 3 55     SPACE eblip-69 3 56 any any DET eblip-69 3 57     SPACE eblip-69 3 58 medium medium NOUN eblip-69 3 59 , , PUNCT eblip-69 3 60     SPACE eblip-69 3 61 provided provide VERB eblip-69 3 62     SPACE eblip-69 3 63 the the DET eblip-69 3 64     SPACE eblip-69 3 65 original original ADJ eblip-69 3 66     SPACE eblip-69 3 67 work work NOUN eblip-69 3 68     SPACE eblip-69 3 69 is be AUX eblip-69 3 70     SPACE eblip-69 3 71 properly properly ADV eblip-69 3 72     SPACE eblip-69 3 73 cited cite VERB eblip-69 3 74 . . PUNCT eblip-69 3 75             SPACE eblip-69 3 76 abstract abstract ADJ eblip-69 3 77         SPACE eblip-69 3 78 objective objective NOUN eblip-69 3 79     SPACE eblip-69 3 80 – – PUNCT eblip-69 3 81     SPACE eblip-69 3 82 to to PART eblip-69 3 83     SPACE eblip-69 3 84 examine examine VERB eblip-69 3 85     SPACE eblip-69 3 86 the the DET eblip-69 3 87     SPACE eblip-69 3 88 interactions interaction NOUN eblip-69 3 89     SPACE eblip-69 3 90 between between ADP eblip-69 3 91     SPACE eblip-69 3 92 users user NOUN eblip-69 3 93     SPACE eblip-69 3 94 and and CCONJ eblip-69 3 95     SPACE eblip-69 3 96 search search NOUN eblip-69 3 97     SPACE eblip-69 3 98 engines engine NOUN eblip-69 3 99 , , PUNCT eblip-69 3 100     SPACE eblip-69 3 101 and and CCONJ eblip-69 3 102     SPACE eblip-69 3 103 how how SCONJ eblip-69 3 104     SPACE eblip-69 3 105 they they PRON eblip-69 3 106     SPACE eblip-69 3 107 have have AUX eblip-69 3 108     SPACE eblip-69 3 109 changed change VERB eblip-69 3 110     SPACE eblip-69 3 111 over over ADP eblip-69 3 112     SPACE eblip-69 3 113 time time NOUN eblip-69 3 114 . . PUNCT eblip-69 3 115           SPACE eblip-69 4 1 design design NOUN eblip-69 4 2     SPACE eblip-69 4 3 – – PUNCT eblip-69 4 4     SPACE eblip-69 4 5 comparative comparative ADJ eblip-69 4 6     SPACE eblip-69 4 7 analysis analysis NOUN eblip-69 4 8     SPACE eblip-69 4 9 of of ADP eblip-69 4 10     SPACE eblip-69 4 11 search search NOUN eblip-69 4 12     SPACE eblip-69 4 13 engine engine NOUN eblip-69 4 14     SPACE eblip-69 4 15 transaction transaction NOUN eblip-69 4 16     SPACE eblip-69 4 17 logs log NOUN eblip-69 4 18 . . PUNCT eblip-69 4 19         SPACE eblip-69 5 1 setting set VERB eblip-69 5 2     SPACE eblip-69 5 3 – – PUNCT eblip-69 5 4     SPACE eblip-69 5 5 nine nine NUM eblip-69 5 6     SPACE eblip-69 5 7 major major ADJ eblip-69 5 8     SPACE eblip-69 5 9 analyses analysis NOUN eblip-69 5 10     SPACE eblip-69 5 11 of of ADP eblip-69 5 12     SPACE eblip-69 5 13 search search NOUN eblip-69 5 14     SPACE eblip-69 5 15 engine engine NOUN eblip-69 5 16     SPACE eblip-69 5 17 transaction transaction NOUN eblip-69 5 18     SPACE eblip-69 5 19 logs log NOUN eblip-69 5 20 . . PUNCT eblip-69 5 21         SPACE eblip-69 6 1 subjects subject NOUN eblip-69 6 2     SPACE eblip-69 6 3 – – PUNCT eblip-69 6 4     SPACE eblip-69 6 5 nine nine NUM eblip-69 6 6     SPACE eblip-69 6 7 web web NOUN eblip-69 6 8     SPACE eblip-69 6 9 search search NOUN eblip-69 6 10     SPACE eblip-69 6 11 engine engine NOUN eblip-69 6 12     SPACE eblip-69 6 13 studies study NOUN eblip-69 6 14     SPACE eblip-69 6 15 ( ( PUNCT eblip-69 6 16 4 4 NUM eblip-69 6 17     SPACE eblip-69 6 18 european european ADJ eblip-69 6 19 , , PUNCT eblip-69 6 20     SPACE eblip-69 6 21 5 5 NUM eblip-69 6 22     SPACE eblip-69 6 23 american american ADJ eblip-69 6 24 ) ) PUNCT eblip-69 6 25     SPACE eblip-69 6 26 over over ADP eblip-69 6 27     SPACE eblip-69 6 28 a a DET eblip-69 6 29     SPACE eblip-69 6 30 seven‐year seven‐year NOUN eblip-69 6 31     SPACE eblip-69 6 32 period period NOUN eblip-69 6 33 , , PUNCT eblip-69 6 34     SPACE eblip-69 6 35 covering cover VERB eblip-69 6 36     SPACE eblip-69 6 37 the the DET eblip-69 6 38     SPACE eblip-69 6 39 search search NOUN eblip-69 6 40     SPACE eblip-69 6 41 engines engine NOUN eblip-69 6 42     SPACE eblip-69 6 43 excite excite ADJ eblip-69 6 44 , , PUNCT eblip-69 6 45     SPACE eblip-69 6 46 fireball fireball NOUN eblip-69 6 47 , , PUNCT eblip-69 6 48     SPACE eblip-69 6 49 altavista altavista PROPN eblip-69 6 50 , , PUNCT eblip-69 6 51     SPACE eblip-69 6 52 bwie bwie NOUN eblip-69 6 53     SPACE eblip-69 6 54 and and CCONJ eblip-69 6 55     SPACE eblip-69 6 56 alltheweb alltheweb X eblip-69 6 57 . . PUNCT eblip-69 6 58         SPACE eblip-69 7 1 methods method NOUN eblip-69 7 2     SPACE eblip-69 7 3 – – PUNCT eblip-69 7 4     SPACE eblip-69 7 5 the the DET eblip-69 7 6     SPACE eblip-69 7 7 results result NOUN eblip-69 7 8     SPACE eblip-69 7 9 from from ADP eblip-69 7 10     SPACE eblip-69 7 11 individual individual ADJ eblip-69 7 12     SPACE eblip-69 7 13 studies study NOUN eblip-69 7 14     SPACE eblip-69 7 15 are be AUX eblip-69 7 16     SPACE eblip-69 7 17 compared compare VERB eblip-69 7 18     SPACE eblip-69 7 19 by by ADP eblip-69 7 20     SPACE eblip-69 7 21 year year NOUN eblip-69 7 22     SPACE eblip-69 7 23 of of ADP eblip-69 7 24     SPACE eblip-69 7 25 study study NOUN eblip-69 7 26     SPACE eblip-69 7 27 for for ADP eblip-69 7 28     SPACE eblip-69 7 29 percentages percentage NOUN eblip-69 7 30     SPACE eblip-69 7 31 of of ADP eblip-69 7 32     SPACE eblip-69 7 33 single single ADJ eblip-69 7 34     SPACE eblip-69 7 35 query query NOUN eblip-69 7 36     SPACE eblip-69 7 37 sessions session NOUN eblip-69 7 38 , , PUNCT eblip-69 7 39     SPACE eblip-69 7 40 one‐ one‐ PROPN eblip-69 7 41 term term NOUN eblip-69 7 42     SPACE eblip-69 7 43 queries query NOUN eblip-69 7 44 , , PUNCT eblip-69 7 45     SPACE eblip-69 7 46 operator operator NOUN eblip-69 7 47     SPACE eblip-69 7 48 ( ( PUNCT eblip-69 7 49 and and CCONJ eblip-69 7 50 , , PUNCT eblip-69 7 51     SPACE eblip-69 7 52 or or CCONJ eblip-69 7 53 , , PUNCT eblip-69 7 54     SPACE eblip-69 7 55 not not PART eblip-69 7 56 , , PUNCT eblip-69 7 57     SPACE eblip-69 7 58 etc etc X eblip-69 7 59 . . X eblip-69 7 60 ) ) PUNCT eblip-69 7 61     SPACE eblip-69 7 62 usage usage NOUN eblip-69 7 63     SPACE eblip-69 7 64 and and CCONJ eblip-69 7 65     SPACE eblip-69 7 66 single single ADJ eblip-69 7 67     SPACE eblip-69 7 68 result result NOUN eblip-69 7 69     SPACE eblip-69 7 70 page page NOUN eblip-69 7 71     SPACE eblip-69 7 72 viewing view VERB eblip-69 7 73 . . PUNCT eblip-69 7 74     SPACE eblip-69 8 1 as as ADV eblip-69 8 2     SPACE eblip-69 8 3 well well ADV eblip-69 8 4 , , PUNCT eblip-69 8 5     SPACE eblip-69 8 6 the the DET eblip-69 8 7     SPACE eblip-69 8 8 authors author NOUN eblip-69 8 9     SPACE eblip-69 8 10 group group NOUN eblip-69 8 11     SPACE eblip-69 8 12 the the DET eblip-69 8 13     SPACE eblip-69 8 14 search search NOUN eblip-69 8 15     SPACE eblip-69 8 16 queries query NOUN eblip-69 8 17     SPACE eblip-69 8 18 into into ADP eblip-69 8 19     SPACE eblip-69 8 20 eleven eleven NUM eblip-69 8 21     SPACE eblip-69 8 22 different different ADJ eblip-69 8 23     SPACE eblip-69 8 24 topical topical ADJ eblip-69 8 25     SPACE eblip-69 8 26 categories category NOUN eblip-69 8 27     SPACE eblip-69 8 28 and and CCONJ eblip-69 8 29     SPACE eblip-69 8 30 compare compare NOUN eblip-69 8 31     SPACE eblip-69 8 32 how how SCONJ eblip-69 8 33     SPACE eblip-69 8 34 the the DET eblip-69 8 35     SPACE eblip-69 8 36 breakdown breakdown NOUN eblip-69 8 37     SPACE eblip-69 8 38 has have AUX eblip-69 8 39     SPACE eblip-69 8 40 changed change VERB eblip-69 8 41     SPACE eblip-69 8 42 over over ADP eblip-69 8 43     SPACE eblip-69 8 44 time time NOUN eblip-69 8 45 . . PUNCT eblip-69 8 46         SPACE eblip-69 9 1 main main ADJ eblip-69 9 2     SPACE eblip-69 9 3 results result NOUN eblip-69 9 4     SPACE eblip-69 9 5 – – PUNCT eblip-69 9 6     SPACE eblip-69 9 7 based base VERB eblip-69 9 8     SPACE eblip-69 9 9 on on ADP eblip-69 9 10     SPACE eblip-69 9 11 the the DET eblip-69 9 12     SPACE eblip-69 9 13 percentage percentage NOUN eblip-69 9 14     SPACE eblip-69 9 15 of of ADP eblip-69 9 16     SPACE eblip-69 9 17 single single ADJ eblip-69 9 18     SPACE eblip-69 9 19 query query NOUN eblip-69 9 20     SPACE eblip-69 9 21 sessions session NOUN eblip-69 9 22 , , PUNCT eblip-69 9 23     SPACE eblip-69 9 24 it it PRON eblip-69 9 25     SPACE eblip-69 9 26 does do AUX eblip-69 9 27     SPACE eblip-69 9 28 not not PART eblip-69 9 29     SPACE eblip-69 9 30 appear appear VERB eblip-69 9 31     SPACE eblip-69 9 32 that that SCONJ eblip-69 9 33     SPACE eblip-69 9 34 the the DET eblip-69 9 35     SPACE eblip-69 9 36 complexity complexity NOUN eblip-69 9 37     SPACE eblip-69 9 38 of of ADP eblip-69 9 39     SPACE eblip-69 9 40 interactions interaction NOUN eblip-69 9 41     SPACE eblip-69 9 42 has have AUX eblip-69 9 43     SPACE eblip-69 9 44 changed change VERB eblip-69 9 45     SPACE eblip-69 9 46 significantly significantly ADV eblip-69 9 47     SPACE eblip-69 9 48 for for ADP eblip-69 9 49     SPACE eblip-69 9 50 either either CCONJ eblip-69 9 51     SPACE eblip-69 9 52 the the DET eblip-69 9 53     SPACE eblip-69 9 54 u.s.‐based u.s.‐based NOUN eblip-69 9 55     SPACE eblip-69 9 56 or or CCONJ eblip-69 9 57     SPACE eblip-69 9 58 the the DET eblip-69 9 59     SPACE eblip-69 9 60 european‐based european‐based ADJ eblip-69 9 61     SPACE eblip-69 9 62 search search NOUN eblip-69 9 63     SPACE eblip-69 9 64 engines engine NOUN eblip-69 9 65 . . PUNCT eblip-69 9 66     SPACE eblip-69 10 1 as as ADV eblip-69 10 2     SPACE eblip-69 10 3 well well ADV eblip-69 10 4 , , PUNCT eblip-69 10 5     SPACE eblip-69 10 6 there there PRON eblip-69 10 7     SPACE eblip-69 10 8 was be AUX eblip-69 10 9     SPACE eblip-69 10 10 little little ADJ eblip-69 10 11     SPACE eblip-69 10 12 change change NOUN eblip-69 10 13     SPACE eblip-69 10 14 observed observe VERB eblip-69 10 15     SPACE eblip-69 10 16 in in ADP eblip-69 10 17     SPACE eblip-69 10 18 the the DET eblip-69 10 19     SPACE eblip-69 10 20 percentage percentage NOUN eblip-69 10 21     SPACE eblip-69 10 22 of of ADP eblip-69 10 23     SPACE eblip-69 10 24 one‐term one‐term NOUN eblip-69 10 25     SPACE eblip-69 10 26 queries query NOUN eblip-69 10 27     SPACE eblip-69 10 28 over over ADP eblip-69 10 29     SPACE eblip-69 10 30 the the DET eblip-69 10 31     SPACE eblip-69 10 32 years year NOUN eblip-69 10 33     SPACE eblip-69 10 34 of of ADP eblip-69 10 35     SPACE eblip-69 10 36 study study NOUN eblip-69 10 37     SPACE eblip-69 10 38 for for ADP eblip-69 10 39     SPACE eblip-69 10 40 either either CCONJ eblip-69 10 41     SPACE eblip-69 10 42 the the DET eblip-69 10 43     SPACE eblip-69 10 44 u.s.‐based u.s.‐based NOUN eblip-69 10 45     SPACE eblip-69 10 46 or or CCONJ eblip-69 10 47     SPACE eblip-69 10 48 the the DET eblip-69 10 49     SPACE eblip-69 10 50 european‐based european‐based ADJ eblip-69 10 51     SPACE eblip-69 10 52 search search NOUN eblip-69 10 53     SPACE eblip-69 10 54 engines engine NOUN eblip-69 10 55 . . PUNCT eblip-69 10 56     SPACE eblip-69 11 1 few few ADJ eblip-69 11 2     SPACE eblip-69 11 3 users user NOUN eblip-69 11 4     SPACE eblip-69 11 5 ( ( PUNCT eblip-69 11 6 generally generally ADV eblip-69 11 7     SPACE eblip-69 11 8 less less ADJ eblip-69 11 9     SPACE eblip-69 11 10 than than ADP eblip-69 11 11     SPACE eblip-69 11 12 20 20 NUM eblip-69 11 13 % % NOUN eblip-69 11 14 ) ) PUNCT eblip-69 11 15     SPACE eblip-69 11 16 use use VERB eblip-69 11 17     SPACE eblip-69 11 18 boolean boolean ADJ eblip-69 11 19     SPACE eblip-69 11 20 or or CCONJ eblip-69 11 21     SPACE eblip-69 11 22 other other ADJ eblip-69 11 23     SPACE eblip-69 11 24 operators operator NOUN eblip-69 11 25     SPACE eblip-69 11 26 in in ADP eblip-69 11 27     SPACE eblip-69 11 28 their their PRON eblip-69 11 29     SPACE eblip-69 11 30 queries query NOUN eblip-69 11 31 , , PUNCT eblip-69 11 32     SPACE eblip-69 11 33 and and CCONJ eblip-69 11 34     SPACE eblip-69 11 35 these these DET eblip-69 11 36     SPACE eblip-69 11 37 percentages percentage NOUN eblip-69 11 38     SPACE eblip-69 11 39 have have AUX eblip-69 11 40     SPACE eblip-69 11 41 remained remain VERB eblip-69 11 42     SPACE eblip-69 11 43 relatively relatively ADV eblip-69 11 44     SPACE eblip-69 11 45 stable stable ADJ eblip-69 11 46 . . PUNCT eblip-69 11 47     SPACE eblip-69 11 48 one one NUM eblip-69 11 49     SPACE eblip-69 11 50 area area NOUN eblip-69 11 51     SPACE eblip-69 11 52 of of ADP eblip-69 11 53     SPACE eblip-69 11 54 noticeable noticeable ADJ eblip-69 11 55     SPACE eblip-69 11 56 change change NOUN eblip-69 11 57     SPACE eblip-69 11 58 is be AUX eblip-69 11 59     SPACE eblip-69 11 60 in in ADP eblip-69 11 61     SPACE eblip-69 11 62 the the DET eblip-69 11 63     SPACE eblip-69 11 64 http://creativecommons.org/licenses/by/2.0 http://creativecommons.org/licenses/by/2.0 PROPN eblip-69 11 65 evidence evidence NOUN eblip-69 11 66     SPACE eblip-69 11 67 based base VERB eblip-69 11 68     SPACE eblip-69 11 69 library library NOUN eblip-69 11 70     SPACE eblip-69 11 71 and and CCONJ eblip-69 11 72     SPACE eblip-69 11 73 information information NOUN eblip-69 11 74     SPACE eblip-69 11 75 practice practice NOUN eblip-69 11 76     SPACE eblip-69 11 77 2006 2006 NUM eblip-69 11 78 , , PUNCT eblip-69 11 79     SPACE eblip-69 11 80 1:3 1:3 NUM eblip-69 11 81             SPACE eblip-69 11 82 68 68 NUM eblip-69 11 83 percentage percentage NOUN eblip-69 11 84     SPACE eblip-69 11 85 of of ADP eblip-69 11 86     SPACE eblip-69 11 87 users user NOUN eblip-69 11 88     SPACE eblip-69 11 89 viewing view VERB eblip-69 11 90     SPACE eblip-69 11 91 only only ADV eblip-69 11 92     SPACE eblip-69 11 93 one one NUM eblip-69 11 94     SPACE eblip-69 11 95 results result VERB eblip-69 11 96     SPACE eblip-69 11 97 page page NOUN eblip-69 11 98 , , PUNCT eblip-69 11 99     SPACE eblip-69 11 100 which which PRON eblip-69 11 101     SPACE eblip-69 11 102 has have AUX eblip-69 11 103     SPACE eblip-69 11 104 increased increase VERB eblip-69 11 105     SPACE eblip-69 11 106 over over ADP eblip-69 11 107     SPACE eblip-69 11 108 the the DET eblip-69 11 109     SPACE eblip-69 11 110 years year NOUN eblip-69 11 111     SPACE eblip-69 11 112 of of ADP eblip-69 11 113     SPACE eblip-69 11 114 study study NOUN eblip-69 11 115 . . PUNCT eblip-69 11 116     SPACE eblip-69 12 1 based base VERB eblip-69 12 2     SPACE eblip-69 12 3 on on ADP eblip-69 12 4     SPACE eblip-69 12 5 the the DET eblip-69 12 6     SPACE eblip-69 12 7 studies study NOUN eblip-69 12 8     SPACE eblip-69 12 9 of of ADP eblip-69 12 10     SPACE eblip-69 12 11 the the DET eblip-69 12 12     SPACE eblip-69 12 13 u.s.‐based u.s.‐based NOUN eblip-69 12 14     SPACE eblip-69 12 15 search search NOUN eblip-69 12 16     SPACE eblip-69 12 17 engines engine NOUN eblip-69 12 18 , , PUNCT eblip-69 12 19     SPACE eblip-69 12 20 the the DET eblip-69 12 21     SPACE eblip-69 12 22 topical topical ADJ eblip-69 12 23     SPACE eblip-69 12 24 categories category NOUN eblip-69 12 25     SPACE eblip-69 12 26 of of ADP eblip-69 12 27     SPACE eblip-69 12 28 ‘ ' PUNCT eblip-69 12 29 people people NOUN eblip-69 12 30 , , PUNCT eblip-69 12 31     SPACE eblip-69 12 32 place place NOUN eblip-69 12 33     SPACE eblip-69 12 34 or or CCONJ eblip-69 12 35     SPACE eblip-69 12 36 things thing NOUN eblip-69 12 37 ’ ' PUNCT eblip-69 12 38     SPACE eblip-69 12 39 and and CCONJ eblip-69 12 40     SPACE eblip-69 12 41 ‘ ' PUNCT eblip-69 12 42 commerce commerce NOUN eblip-69 12 43 , , PUNCT eblip-69 12 44     SPACE eblip-69 12 45 travel travel NOUN eblip-69 12 46 , , PUNCT eblip-69 12 47     SPACE eblip-69 12 48 employment employment NOUN eblip-69 12 49     SPACE eblip-69 12 50 or or CCONJ eblip-69 12 51     SPACE eblip-69 12 52 economy economy NOUN eblip-69 12 53 ’ ' PUNCT eblip-69 12 54     SPACE eblip-69 12 55 are be AUX eblip-69 12 56     SPACE eblip-69 12 57 becoming become VERB eblip-69 12 58     SPACE eblip-69 12 59 more more ADV eblip-69 12 60     SPACE eblip-69 12 61 popular popular ADJ eblip-69 12 62 , , PUNCT eblip-69 12 63     SPACE eblip-69 12 64 while while SCONJ eblip-69 12 65     SPACE eblip-69 12 66 the the DET eblip-69 12 67     SPACE eblip-69 12 68 categories category NOUN eblip-69 12 69     SPACE eblip-69 12 70 of of ADP eblip-69 12 71     SPACE eblip-69 12 72 ‘ ' PUNCT eblip-69 12 73 sex sex NOUN eblip-69 12 74     SPACE eblip-69 12 75 and and CCONJ eblip-69 12 76     SPACE eblip-69 12 77 pornography pornography NOUN eblip-69 12 78 ’ ' PUNCT eblip-69 12 79     SPACE eblip-69 12 80 and and CCONJ eblip-69 12 81     SPACE eblip-69 12 82 ‘ ' PUNCT eblip-69 12 83 entertainment entertainment NOUN eblip-69 12 84     SPACE eblip-69 12 85 or or CCONJ eblip-69 12 86     SPACE eblip-69 12 87 recreation recreation NOUN eblip-69 12 88 ’ ' PUNCT eblip-69 12 89     SPACE eblip-69 12 90 are be AUX eblip-69 12 91     SPACE eblip-69 12 92 declining decline VERB eblip-69 12 93 . . PUNCT eblip-69 12 94         SPACE eblip-69 13 1 conclusions conclusion NOUN eblip-69 13 2     SPACE eblip-69 13 3 – – PUNCT eblip-69 13 4     SPACE eblip-69 13 5 the the DET eblip-69 13 6     SPACE eblip-69 13 7 percentage percentage NOUN eblip-69 13 8     SPACE eblip-69 13 9 of of ADP eblip-69 13 10     SPACE eblip-69 13 11 users user NOUN eblip-69 13 12     SPACE eblip-69 13 13 viewing view VERB eblip-69 13 14     SPACE eblip-69 13 15 only only ADV eblip-69 13 16     SPACE eblip-69 13 17 one one NUM eblip-69 13 18     SPACE eblip-69 13 19 results result VERB eblip-69 13 20     SPACE eblip-69 13 21 page page NOUN eblip-69 13 22     SPACE eblip-69 13 23 increased increase VERB eblip-69 13 24     SPACE eblip-69 13 25 during during ADP eblip-69 13 26     SPACE eblip-69 13 27 the the DET eblip-69 13 28     SPACE eblip-69 13 29 years year NOUN eblip-69 13 30     SPACE eblip-69 13 31 of of ADP eblip-69 13 32     SPACE eblip-69 13 33 the the DET eblip-69 13 34     SPACE eblip-69 13 35 study study NOUN eblip-69 13 36 , , PUNCT eblip-69 13 37     SPACE eblip-69 13 38 while while SCONJ eblip-69 13 39     SPACE eblip-69 13 40 the the DET eblip-69 13 41     SPACE eblip-69 13 42 percentages percentage NOUN eblip-69 13 43     SPACE eblip-69 13 44 of of ADP eblip-69 13 45     SPACE eblip-69 13 46 single single ADJ eblip-69 13 47     SPACE eblip-69 13 48 query query NOUN eblip-69 13 49     SPACE eblip-69 13 50 sessions session NOUN eblip-69 13 51 , , PUNCT eblip-69 13 52     SPACE eblip-69 13 53 one‐ one‐ PROPN eblip-69 13 54 term term NOUN eblip-69 13 55     SPACE eblip-69 13 56 sessions session NOUN eblip-69 13 57     SPACE eblip-69 13 58 and and CCONJ eblip-69 13 59     SPACE eblip-69 13 60 operator operator NOUN eblip-69 13 61     SPACE eblip-69 13 62 usage usage NOUN eblip-69 13 63     SPACE eblip-69 13 64 remained remain VERB eblip-69 13 65     SPACE eblip-69 13 66 stable stable ADJ eblip-69 13 67 . . PUNCT eblip-69 13 68     SPACE eblip-69 14 1 the the DET eblip-69 14 2     SPACE eblip-69 14 3 increase increase NOUN eblip-69 14 4     SPACE eblip-69 14 5 in in ADP eblip-69 14 6     SPACE eblip-69 14 7 single single ADJ eblip-69 14 8     SPACE eblip-69 14 9 result result NOUN eblip-69 14 10     SPACE eblip-69 14 11 page page NOUN eblip-69 14 12     SPACE eblip-69 14 13 viewing view VERB eblip-69 14 14     SPACE eblip-69 14 15 implies imply VERB eblip-69 14 16     SPACE eblip-69 14 17 that that SCONJ eblip-69 14 18     SPACE eblip-69 14 19 users user NOUN eblip-69 14 20     SPACE eblip-69 14 21 are be AUX eblip-69 14 22     SPACE eblip-69 14 23 tending tend VERB eblip-69 14 24     SPACE eblip-69 14 25 to to PART eblip-69 14 26     SPACE eblip-69 14 27 view view VERB eblip-69 14 28     SPACE eblip-69 14 29 fewer few ADJ eblip-69 14 30     SPACE eblip-69 14 31 results result NOUN eblip-69 14 32     SPACE eblip-69 14 33 per per ADP eblip-69 14 34     SPACE eblip-69 14 35 web web NOUN eblip-69 14 36     SPACE eblip-69 14 37 query query NOUN eblip-69 14 38 . . PUNCT eblip-69 14 39     SPACE eblip-69 15 1 there there PRON eblip-69 15 2     SPACE eblip-69 15 3 was be AUX eblip-69 15 4     SPACE eblip-69 15 5 also also ADV eblip-69 15 6     SPACE eblip-69 15 7 a a DET eblip-69 15 8     SPACE eblip-69 15 9 significant significant ADJ eblip-69 15 10     SPACE eblip-69 15 11 difference difference NOUN eblip-69 15 12     SPACE eblip-69 15 13 in in ADP eblip-69 15 14     SPACE eblip-69 15 15 the the DET eblip-69 15 16     SPACE eblip-69 15 17 percentage percentage NOUN eblip-69 15 18     SPACE eblip-69 15 19 of of ADP eblip-69 15 20     SPACE eblip-69 15 21 queries query NOUN eblip-69 15 22     SPACE eblip-69 15 23 using use VERB eblip-69 15 24     SPACE eblip-69 15 25 boolean boolean ADJ eblip-69 15 26     SPACE eblip-69 15 27 operators operator NOUN eblip-69 15 28     SPACE eblip-69 15 29 between between ADP eblip-69 15 30     SPACE eblip-69 15 31 the the DET eblip-69 15 32     SPACE eblip-69 15 33 us‐based us‐based ADJ eblip-69 15 34     SPACE eblip-69 15 35 and and CCONJ eblip-69 15 36     SPACE eblip-69 15 37 the the DET eblip-69 15 38     SPACE eblip-69 15 39 european‐based european‐based ADJ eblip-69 15 40     SPACE eblip-69 15 41 search search NOUN eblip-69 15 42     SPACE eblip-69 15 43 engines engine NOUN eblip-69 15 44 . . PUNCT eblip-69 15 45     SPACE eblip-69 16 1 one one NUM eblip-69 16 2     SPACE eblip-69 16 3 of of ADP eblip-69 16 4     SPACE eblip-69 16 5 the the DET eblip-69 16 6     SPACE eblip-69 16 7 study study NOUN eblip-69 16 8 ’s ’s NOUN eblip-69 16 9     SPACE eblip-69 16 10 findings finding NOUN eblip-69 16 11     SPACE eblip-69 16 12 was be AUX eblip-69 16 13     SPACE eblip-69 16 14 that that SCONJ eblip-69 16 15     SPACE eblip-69 16 16 results result VERB eblip-69 16 17     SPACE eblip-69 16 18 from from ADP eblip-69 16 19     SPACE eblip-69 16 20 a a DET eblip-69 16 21     SPACE eblip-69 16 22 study study NOUN eblip-69 16 23     SPACE eblip-69 16 24 of of ADP eblip-69 16 25     SPACE eblip-69 16 26 a a DET eblip-69 16 27     SPACE eblip-69 16 28 particular particular ADJ eblip-69 16 29     SPACE eblip-69 16 30 search search NOUN eblip-69 16 31     SPACE eblip-69 16 32 engine engine NOUN eblip-69 16 33     SPACE eblip-69 16 34 can can AUX eblip-69 16 35 not not PART eblip-69 16 36     SPACE eblip-69 16 37 necessarily necessarily ADV eblip-69 16 38     SPACE eblip-69 16 39 be be AUX eblip-69 16 40     SPACE eblip-69 16 41 applied apply VERB eblip-69 16 42     SPACE eblip-69 16 43 to to ADP eblip-69 16 44     SPACE eblip-69 16 45 all all DET eblip-69 16 46     SPACE eblip-69 16 47 search search NOUN eblip-69 16 48     SPACE eblip-69 16 49 engines engine NOUN eblip-69 16 50 . . PUNCT eblip-69 16 51     SPACE eblip-69 17 1 finally finally ADV eblip-69 17 2 , , PUNCT eblip-69 17 3     SPACE eblip-69 17 4 web web NOUN eblip-69 17 5     SPACE eblip-69 17 6 search search NOUN eblip-69 17 7     SPACE eblip-69 17 8 topics topic NOUN eblip-69 17 9     SPACE eblip-69 17 10 show show VERB eblip-69 17 11     SPACE eblip-69 17 12 a a DET eblip-69 17 13     SPACE eblip-69 17 14 trend trend NOUN eblip-69 17 15     SPACE eblip-69 17 16 towards towards ADP eblip-69 17 17     SPACE eblip-69 17 18 information information NOUN eblip-69 17 19     SPACE eblip-69 17 20 or or CCONJ eblip-69 17 21     SPACE eblip-69 17 22 commerce commerce NOUN eblip-69 17 23     SPACE eblip-69 17 24 searching search VERB eblip-69 17 25     SPACE eblip-69 17 26 rather rather ADV eblip-69 17 27     SPACE eblip-69 17 28 than than ADP eblip-69 17 29     SPACE eblip-69 17 30 entertainment entertainment NOUN eblip-69 17 31 . . PUNCT eblip-69 17 32           SPACE eblip-69 18 1 commentary commentary NOUN eblip-69 18 2         SPACE eblip-69 18 3 the the DET eblip-69 18 4     SPACE eblip-69 18 5 authors author NOUN eblip-69 18 6     SPACE eblip-69 18 7 have have AUX eblip-69 18 8     SPACE eblip-69 18 9 undertaken undertake VERB eblip-69 18 10     SPACE eblip-69 18 11 a a DET eblip-69 18 12     SPACE eblip-69 18 13 study study NOUN eblip-69 18 14     SPACE eblip-69 18 15 of of ADP eblip-69 18 16     SPACE eblip-69 18 17 some some PRON eblip-69 18 18     SPACE eblip-69 18 19 very very ADV eblip-69 18 20     SPACE eblip-69 18 21 interesting interesting ADJ eblip-69 18 22     SPACE eblip-69 18 23 and and CCONJ eblip-69 18 24     SPACE eblip-69 18 25 important important ADJ eblip-69 18 26     SPACE eblip-69 18 27 questions question NOUN eblip-69 18 28 : : PUNCT eblip-69 18 29     SPACE eblip-69 18 30 as as ADP eblip-69 18 31     SPACE eblip-69 18 32 the the DET eblip-69 18 33     SPACE eblip-69 18 34 internet internet NOUN eblip-69 18 35     SPACE eblip-69 18 36 and and CCONJ eblip-69 18 37     SPACE eblip-69 18 38 search search NOUN eblip-69 18 39     SPACE eblip-69 18 40 engines engine NOUN eblip-69 18 41     SPACE eblip-69 18 42 evolve evolve VERB eblip-69 18 43 , , PUNCT eblip-69 18 44     SPACE eblip-69 18 45 and and CCONJ eblip-69 18 46     SPACE eblip-69 18 47 as as ADP eblip-69 18 48     SPACE eblip-69 18 49 more more ADJ eblip-69 18 50     SPACE eblip-69 18 51 and and CCONJ eblip-69 18 52     SPACE eblip-69 18 53 more more ADJ eblip-69 18 54     SPACE eblip-69 18 55 people people NOUN eblip-69 18 56     SPACE eblip-69 18 57 use use VERB eblip-69 18 58     SPACE eblip-69 18 59 the the DET eblip-69 18 60     SPACE eblip-69 18 61 internet internet NOUN eblip-69 18 62 , , PUNCT eblip-69 18 63     SPACE eblip-69 18 64 how how SCONJ eblip-69 18 65     SPACE eblip-69 18 66 are be AUX eblip-69 18 67     SPACE eblip-69 18 68 users user NOUN eblip-69 18 69 ’ ' PUNCT eblip-69 18 70     SPACE eblip-69 18 71 search search NOUN eblip-69 18 72     SPACE eblip-69 18 73 patterns pattern NOUN eblip-69 18 74     SPACE eblip-69 18 75 and and CCONJ eblip-69 18 76     SPACE eblip-69 18 77 techniques technique NOUN eblip-69 18 78     SPACE eblip-69 18 79 changing change VERB eblip-69 18 80 ? ? PUNCT eblip-69 18 81           SPACE eblip-69 18 82 one one NUM eblip-69 18 83     SPACE eblip-69 18 84 thing thing NOUN eblip-69 18 85     SPACE eblip-69 18 86 that that SCONJ eblip-69 18 87     SPACE eblip-69 18 88 the the DET eblip-69 18 89     SPACE eblip-69 18 90 researchers researcher NOUN eblip-69 18 91     SPACE eblip-69 18 92 of of ADP eblip-69 18 93     SPACE eblip-69 18 94 this this DET eblip-69 18 95     SPACE eblip-69 18 96 study study NOUN eblip-69 18 97     SPACE eblip-69 18 98 do do VERB eblip-69 18 99     SPACE eblip-69 18 100 particularly particularly ADV eblip-69 18 101     SPACE eblip-69 18 102 well well ADV eblip-69 18 103     SPACE eblip-69 18 104 is be AUX eblip-69 18 105     SPACE eblip-69 18 106 to to PART eblip-69 18 107     SPACE eblip-69 18 108 clearly clearly ADV eblip-69 18 109     SPACE eblip-69 18 110 identify identify VERB eblip-69 18 111     SPACE eblip-69 18 112 their their PRON eblip-69 18 113     SPACE eblip-69 18 114 research research NOUN eblip-69 18 115     SPACE eblip-69 18 116 questions question NOUN eblip-69 18 117     SPACE eblip-69 18 118 – – PUNCT eblip-69 18 119     SPACE eblip-69 18 120 searching searching NOUN eblip-69 18 121     SPACE eblip-69 18 122 for for ADP eblip-69 18 123     SPACE eblip-69 18 124 trends trend NOUN eblip-69 18 125     SPACE eblip-69 18 126 and and CCONJ eblip-69 18 127     SPACE eblip-69 18 128 differences difference NOUN eblip-69 18 129     SPACE eblip-69 18 130 in in ADP eblip-69 18 131     SPACE eblip-69 18 132 the the DET eblip-69 18 133     SPACE eblip-69 18 134 number number NOUN eblip-69 18 135     SPACE eblip-69 18 136 of of ADP eblip-69 18 137     SPACE eblip-69 18 138 one‐ one‐ PROPN eblip-69 18 139 query query NOUN eblip-69 18 140     SPACE eblip-69 18 141 sessions session NOUN eblip-69 18 142 , , PUNCT eblip-69 18 143     SPACE eblip-69 18 144 one‐term one‐term NOUN eblip-69 18 145     SPACE eblip-69 18 146 queries query NOUN eblip-69 18 147     SPACE eblip-69 18 148 and and CCONJ eblip-69 18 149     SPACE eblip-69 18 150 results result VERB eblip-69 18 151     SPACE eblip-69 18 152 pages page NOUN eblip-69 18 153     SPACE eblip-69 18 154 viewed view VERB eblip-69 18 155 , , PUNCT eblip-69 18 156     SPACE eblip-69 18 157 and and CCONJ eblip-69 18 158     SPACE eblip-69 18 159 the the DET eblip-69 18 160     SPACE eblip-69 18 161 changes change NOUN eblip-69 18 162     SPACE eblip-69 18 163 in in ADP eblip-69 18 164     SPACE eblip-69 18 165 the the DET eblip-69 18 166     SPACE eblip-69 18 167 search search NOUN eblip-69 18 168     SPACE eblip-69 18 169 topics topic NOUN eblip-69 18 170     SPACE eblip-69 18 171 themselves themselves PRON eblip-69 18 172 . . PUNCT eblip-69 18 173     SPACE eblip-69 19 1 their their PRON eblip-69 19 2     SPACE eblip-69 19 3 methodology methodology NOUN eblip-69 19 4     SPACE eblip-69 19 5 is be AUX eblip-69 19 6     SPACE eblip-69 19 7 equally equally ADV eblip-69 19 8     SPACE eblip-69 19 9 well well ADV eblip-69 19 10     SPACE eblip-69 19 11 described describe VERB eblip-69 19 12 , , PUNCT eblip-69 19 13     SPACE eblip-69 19 14 complete complete ADJ eblip-69 19 15     SPACE eblip-69 19 16 with with ADP eblip-69 19 17     SPACE eblip-69 19 18 definitions definition NOUN eblip-69 19 19     SPACE eblip-69 19 20 and and CCONJ eblip-69 19 21     SPACE eblip-69 19 22 full full ADJ eblip-69 19 23     SPACE eblip-69 19 24 explanations explanation NOUN eblip-69 19 25 . . PUNCT eblip-69 19 26     SPACE eblip-69 20 1 the the DET eblip-69 20 2     SPACE eblip-69 20 3 authors author NOUN eblip-69 20 4     SPACE eblip-69 20 5 detail detail NOUN eblip-69 20 6     SPACE eblip-69 20 7 an an DET eblip-69 20 8     SPACE eblip-69 20 9 extensive extensive ADJ eblip-69 20 10     SPACE eblip-69 20 11 background background NOUN eblip-69 20 12     SPACE eblip-69 20 13 literature literature NOUN eblip-69 20 14     SPACE eblip-69 20 15 search search NOUN eblip-69 20 16     SPACE eblip-69 20 17 and and CCONJ eblip-69 20 18     SPACE eblip-69 20 19 identify identify VERB eblip-69 20 20     SPACE eblip-69 20 21 the the DET eblip-69 20 22     SPACE eblip-69 20 23 three three NUM eblip-69 20 24     SPACE eblip-69 20 25 different different ADJ eblip-69 20 26     SPACE eblip-69 20 27 types type NOUN eblip-69 20 28     SPACE eblip-69 20 29 of of ADP eblip-69 20 30     SPACE eblip-69 20 31 methodologies methodology NOUN eblip-69 20 32     SPACE eblip-69 20 33 used use VERB eblip-69 20 34     SPACE eblip-69 20 35 to to PART eblip-69 20 36     SPACE eblip-69 20 37 study study VERB eblip-69 20 38     SPACE eblip-69 20 39 web web NOUN eblip-69 20 40     SPACE eblip-69 20 41 searching searching NOUN eblip-69 20 42     SPACE eblip-69 20 43 in in ADP eblip-69 20 44     SPACE eblip-69 20 45 the the DET eblip-69 20 46     SPACE eblip-69 20 47 past past NOUN eblip-69 20 48 . . PUNCT eblip-69 20 49     SPACE eblip-69 21 1 although although SCONJ eblip-69 21 2     SPACE eblip-69 21 3 there there PRON eblip-69 21 4     SPACE eblip-69 21 5 have have AUX eblip-69 21 6     SPACE eblip-69 21 7 been be AUX eblip-69 21 8     SPACE eblip-69 21 9 many many ADJ eblip-69 21 10     SPACE eblip-69 21 11 previous previous ADJ eblip-69 21 12     SPACE eblip-69 21 13 studies study NOUN eblip-69 21 14     SPACE eblip-69 21 15 of of ADP eblip-69 21 16     SPACE eblip-69 21 17 search search NOUN eblip-69 21 18     SPACE eblip-69 21 19 engine engine NOUN eblip-69 21 20     SPACE eblip-69 21 21 use use NOUN eblip-69 21 22 , , PUNCT eblip-69 21 23     SPACE eblip-69 21 24 the the DET eblip-69 21 25     SPACE eblip-69 21 26 authors author NOUN eblip-69 21 27     SPACE eblip-69 21 28 point point NOUN eblip-69 21 29     SPACE eblip-69 21 30 out out ADP eblip-69 21 31     SPACE eblip-69 21 32 that that PRON eblip-69 21 33     SPACE eblip-69 21 34 to to ADP eblip-69 21 35     SPACE eblip-69 21 36 date date NOUN eblip-69 21 37     SPACE eblip-69 21 38 there there PRON eblip-69 21 39     SPACE eblip-69 21 40 have have AUX eblip-69 21 41     SPACE eblip-69 21 42 been be AUX eblip-69 21 43     SPACE eblip-69 21 44 few few ADJ eblip-69 21 45     SPACE eblip-69 21 46 studies study NOUN eblip-69 21 47     SPACE eblip-69 21 48 that that PRON eblip-69 21 49     SPACE eblip-69 21 50 compare compare VERB eblip-69 21 51     SPACE eblip-69 21 52 the the DET eblip-69 21 53     SPACE eblip-69 21 54 findings finding NOUN eblip-69 21 55     SPACE eblip-69 21 56 across across ADP eblip-69 21 57     SPACE eblip-69 21 58 the the DET eblip-69 21 59     SPACE eblip-69 21 60 different different ADJ eblip-69 21 61     SPACE eblip-69 21 62 studies study NOUN eblip-69 21 63 . . PUNCT eblip-69 21 64     SPACE eblip-69 22 1 thus thus ADV eblip-69 22 2 , , PUNCT eblip-69 22 3     SPACE eblip-69 22 4 this this DET eblip-69 22 5     SPACE eblip-69 22 6 study study NOUN eblip-69 22 7     SPACE eblip-69 22 8 fills fill VERB eblip-69 22 9     SPACE eblip-69 22 10 a a DET eblip-69 22 11     SPACE eblip-69 22 12 void void NOUN eblip-69 22 13     SPACE eblip-69 22 14 in in ADP eblip-69 22 15     SPACE eblip-69 22 16 the the DET eblip-69 22 17     SPACE eblip-69 22 18 research research NOUN eblip-69 22 19 , , PUNCT eblip-69 22 20     SPACE eblip-69 22 21 complementing complement VERB eblip-69 22 22     SPACE eblip-69 22 23 existing exist VERB eblip-69 22 24     SPACE eblip-69 22 25 research research NOUN eblip-69 22 26 . . PUNCT eblip-69 22 27           SPACE eblip-69 23 1 it it PRON eblip-69 23 2     SPACE eblip-69 23 3 is be AUX eblip-69 23 4     SPACE eblip-69 23 5 unfortunate unfortunate ADJ eblip-69 23 6     SPACE eblip-69 23 7 that that SCONJ eblip-69 23 8     SPACE eblip-69 23 9 the the DET eblip-69 23 10     SPACE eblip-69 23 11 number number NOUN eblip-69 23 12     SPACE eblip-69 23 13 of of ADP eblip-69 23 14     SPACE eblip-69 23 15 search search NOUN eblip-69 23 16     SPACE eblip-69 23 17 engines engine NOUN eblip-69 23 18     SPACE eblip-69 23 19 covered cover VERB eblip-69 23 20     SPACE eblip-69 23 21 by by ADP eblip-69 23 22     SPACE eblip-69 23 23 the the DET eblip-69 23 24     SPACE eblip-69 23 25 various various ADJ eblip-69 23 26     SPACE eblip-69 23 27 studies study NOUN eblip-69 23 28     SPACE eblip-69 23 29 was be AUX eblip-69 23 30     SPACE eblip-69 23 31 very very ADV eblip-69 23 32     SPACE eblip-69 23 33 limited limited ADJ eblip-69 23 34 . . PUNCT eblip-69 23 35     SPACE eblip-69 24 1 this this PRON eblip-69 24 2     SPACE eblip-69 24 3 appears appear VERB eblip-69 24 4     SPACE eblip-69 24 5 to to PART eblip-69 24 6     SPACE eblip-69 24 7 have have AUX eblip-69 24 8     SPACE eblip-69 24 9 been be AUX eblip-69 24 10     SPACE eblip-69 24 11 necessary necessary ADJ eblip-69 24 12 , , PUNCT eblip-69 24 13     SPACE eblip-69 24 14 due due ADJ eblip-69 24 15     SPACE eblip-69 24 16 to to ADP eblip-69 24 17     SPACE eblip-69 24 18 the the DET eblip-69 24 19     SPACE eblip-69 24 20 limited limited ADJ eblip-69 24 21     SPACE eblip-69 24 22 amount amount NOUN eblip-69 24 23     SPACE eblip-69 24 24 of of ADP eblip-69 24 25     SPACE eblip-69 24 26 usable usable ADJ eblip-69 24 27     SPACE eblip-69 24 28 data datum NOUN eblip-69 24 29     SPACE eblip-69 24 30 from from ADP eblip-69 24 31     SPACE eblip-69 24 32 the the DET eblip-69 24 33     SPACE eblip-69 24 34 other other ADJ eblip-69 24 35     SPACE eblip-69 24 36 search search NOUN eblip-69 24 37     SPACE eblip-69 24 38 engines engine NOUN eblip-69 24 39 , , PUNCT eblip-69 24 40     SPACE eblip-69 24 41 but but CCONJ eblip-69 24 42     SPACE eblip-69 24 43 meant mean VERB eblip-69 24 44     SPACE eblip-69 24 45 that that SCONJ eblip-69 24 46     SPACE eblip-69 24 47 trend trend NOUN eblip-69 24 48     SPACE eblip-69 24 49 analysis analysis NOUN eblip-69 24 50     SPACE eblip-69 24 51 of of ADP eblip-69 24 52     SPACE eblip-69 24 53 u.s‐.based u.s‐.based ADJ eblip-69 24 54     SPACE eblip-69 24 55 search search NOUN eblip-69 24 56     SPACE eblip-69 24 57 engines engine NOUN eblip-69 24 58     SPACE eblip-69 24 59 was be AUX eblip-69 24 60     SPACE eblip-69 24 61 based base VERB eblip-69 24 62     SPACE eblip-69 24 63 on on ADP eblip-69 24 64     SPACE eblip-69 24 65 only only ADV eblip-69 24 66     SPACE eblip-69 24 67 two two NUM eblip-69 24 68     SPACE eblip-69 24 69 search search NOUN eblip-69 24 70     SPACE eblip-69 24 71 engines engine NOUN eblip-69 24 72 . . PUNCT eblip-69 24 73     SPACE eblip-69 25 1 notably notably ADV eblip-69 25 2     SPACE eblip-69 25 3 missing miss VERB eblip-69 25 4     SPACE eblip-69 25 5 from from ADP eblip-69 25 6     SPACE eblip-69 25 7 the the DET eblip-69 25 8     SPACE eblip-69 25 9 search search NOUN eblip-69 25 10     SPACE eblip-69 25 11 engines engine NOUN eblip-69 25 12     SPACE eblip-69 25 13 was be AUX eblip-69 25 14     SPACE eblip-69 25 15 google google NOUN eblip-69 25 16 , , PUNCT eblip-69 25 17     SPACE eblip-69 25 18 not not PART eblip-69 25 19     SPACE eblip-69 25 20 only only ADV eblip-69 25 21     SPACE eblip-69 25 22 because because SCONJ eblip-69 25 23     SPACE eblip-69 25 24 it it PRON eblip-69 25 25     SPACE eblip-69 25 26 is be AUX eblip-69 25 27     SPACE eblip-69 25 28 currently currently ADV eblip-69 25 29     SPACE eblip-69 25 30 the the DET eblip-69 25 31     SPACE eblip-69 25 32 most most ADJ eblip-69 25 33     SPACE eblip-69 25 34 popular popular ADJ eblip-69 25 35     SPACE eblip-69 25 36 search search NOUN eblip-69 25 37     SPACE eblip-69 25 38 engine engine NOUN eblip-69 25 39 , , PUNCT eblip-69 25 40     SPACE eblip-69 25 41 but but CCONJ eblip-69 25 42     SPACE eblip-69 25 43 also also ADV eblip-69 25 44     SPACE eblip-69 25 45 because because SCONJ eblip-69 25 46     SPACE eblip-69 25 47 its its PRON eblip-69 25 48     SPACE eblip-69 25 49 development development NOUN eblip-69 25 50     SPACE eblip-69 25 51 has have AUX eblip-69 25 52     SPACE eblip-69 25 53 changed change VERB eblip-69 25 54     SPACE eblip-69 25 55 user user NOUN eblip-69 25 56     SPACE eblip-69 25 57 expectations expectation NOUN eblip-69 25 58     SPACE eblip-69 25 59 of of ADP eblip-69 25 60     SPACE eblip-69 25 61 search search NOUN eblip-69 25 62     SPACE eblip-69 25 63 engines engine NOUN eblip-69 25 64     SPACE eblip-69 25 65 and and CCONJ eblip-69 25 66     SPACE eblip-69 25 67 web web NOUN eblip-69 25 68     SPACE eblip-69 25 69 searches search NOUN eblip-69 25 70 . . PUNCT eblip-69 25 71     SPACE eblip-69 26 1 the the DET eblip-69 26 2     SPACE eblip-69 26 3 limited limited ADJ eblip-69 26 4     SPACE eblip-69 26 5 number number NOUN eblip-69 26 6     SPACE eblip-69 26 7 of of ADP eblip-69 26 8     SPACE eblip-69 26 9 studies study NOUN eblip-69 26 10     SPACE eblip-69 26 11 and and CCONJ eblip-69 26 12     SPACE eblip-69 26 13 search search NOUN eblip-69 26 14     SPACE eblip-69 26 15 engines engine NOUN eblip-69 26 16     SPACE eblip-69 26 17 included include VERB eblip-69 26 18     SPACE eblip-69 26 19 puts put NOUN eblip-69 26 20     SPACE eblip-69 26 21 into into ADP eblip-69 26 22     SPACE eblip-69 26 23 question question NOUN eblip-69 26 24     SPACE eblip-69 26 25 the the DET eblip-69 26 26     SPACE eblip-69 26 27 usefulness usefulness NOUN eblip-69 26 28     SPACE eblip-69 26 29 of of ADP eblip-69 26 30     SPACE eblip-69 26 31 the the DET eblip-69 26 32     SPACE eblip-69 26 33 results result NOUN eblip-69 26 34 , , PUNCT eblip-69 26 35     SPACE eblip-69 26 36 but but CCONJ eblip-69 26 37     SPACE eblip-69 26 38 it it PRON eblip-69 26 39     SPACE eblip-69 26 40 appears appear VERB eblip-69 26 41     SPACE eblip-69 26 42 that that SCONJ eblip-69 26 43     SPACE eblip-69 26 44 the the DET eblip-69 26 45     SPACE eblip-69 26 46 researchers researcher NOUN eblip-69 26 47     SPACE eblip-69 26 48 were be AUX eblip-69 26 49     SPACE eblip-69 26 50 working work VERB eblip-69 26 51     SPACE eblip-69 26 52 with with ADP eblip-69 26 53     SPACE eblip-69 26 54 what what PRON eblip-69 26 55     SPACE eblip-69 26 56 they they PRON eblip-69 26 57     SPACE eblip-69 26 58 had have AUX eblip-69 26 59     SPACE eblip-69 26 60 available available ADJ eblip-69 26 61     SPACE eblip-69 26 62 to to ADP eblip-69 26 63     SPACE eblip-69 26 64 them they PRON eblip-69 26 65 . . PUNCT eblip-69 26 66         SPACE eblip-69 26 67 for for ADP eblip-69 26 68     SPACE eblip-69 26 69 the the DET eblip-69 26 70     SPACE eblip-69 26 71 most most ADJ eblip-69 26 72     SPACE eblip-69 26 73 part part NOUN eblip-69 26 74 , , PUNCT eblip-69 26 75     SPACE eblip-69 26 76 the the DET eblip-69 26 77     SPACE eblip-69 26 78 authors author NOUN eblip-69 26 79     SPACE eblip-69 26 80 do do VERB eblip-69 26 81     SPACE eblip-69 26 82 a a DET eblip-69 26 83     SPACE eblip-69 26 84 thorough thorough ADJ eblip-69 26 85     SPACE eblip-69 26 86 job job NOUN eblip-69 26 87     SPACE eblip-69 26 88 of of ADP eblip-69 26 89     SPACE eblip-69 26 90 analyzing analyzing NOUN eblip-69 26 91     SPACE eblip-69 26 92 and and CCONJ eblip-69 26 93     SPACE eblip-69 26 94 explaining explain VERB eblip-69 26 95     SPACE eblip-69 26 96 the the DET eblip-69 26 97     SPACE eblip-69 26 98 results result NOUN eblip-69 26 99     SPACE eblip-69 26 100 of of ADP eblip-69 26 101     SPACE eblip-69 26 102 their their PRON eblip-69 26 103     SPACE eblip-69 26 104 comparison comparison NOUN eblip-69 26 105     SPACE eblip-69 26 106 studies study NOUN eblip-69 26 107 . . PUNCT eblip-69 26 108     SPACE eblip-69 27 1 there there PRON eblip-69 27 2     SPACE eblip-69 27 3 were be AUX eblip-69 27 4     SPACE eblip-69 27 5 two two NUM eblip-69 27 6     SPACE eblip-69 27 7 cases case NOUN eblip-69 27 8     SPACE eblip-69 27 9 ( ( PUNCT eblip-69 27 10 percentage percentage NOUN eblip-69 27 11     SPACE eblip-69 27 12 of of ADP eblip-69 27 13     SPACE eblip-69 27 14 one‐query one‐query NUM eblip-69 27 15     SPACE eblip-69 27 16 sessions session NOUN eblip-69 27 17     SPACE eblip-69 27 18 and and CCONJ eblip-69 27 19     SPACE eblip-69 27 20 percentage percentage NOUN eblip-69 27 21     SPACE eblip-69 27 22 of of ADP eblip-69 27 23     SPACE eblip-69 27 24 users user NOUN eblip-69 27 25     SPACE eblip-69 27 26 viewing view VERB eblip-69 27 27     SPACE eblip-69 27 28 only only ADV eblip-69 27 29     SPACE eblip-69 27 30 one one NUM eblip-69 27 31     SPACE eblip-69 27 32 search search NOUN eblip-69 27 33     SPACE eblip-69 27 34 results result VERB eblip-69 27 35     SPACE eblip-69 27 36 page page NOUN eblip-69 27 37 ) ) PUNCT eblip-69 27 38     SPACE eblip-69 27 39 where where SCONJ eblip-69 27 40     SPACE eblip-69 27 41 the the DET eblip-69 27 42     SPACE eblip-69 27 43 results result NOUN eblip-69 27 44     SPACE eblip-69 27 45 of of ADP eblip-69 27 46     SPACE eblip-69 27 47 the the DET eblip-69 27 48     SPACE eblip-69 27 49 1998 1998 NUM eblip-69 27 50     SPACE eblip-69 27 51 study study NOUN eblip-69 27 52     SPACE eblip-69 27 53 of of ADP eblip-69 27 54     SPACE eblip-69 27 55 the the DET eblip-69 27 56     SPACE eblip-69 27 57 alta alta PROPN eblip-69 27 58     SPACE eblip-69 27 59 vista vista PROPN eblip-69 27 60     SPACE eblip-69 27 61 search search NOUN eblip-69 27 62     SPACE eblip-69 27 63 engine engine NOUN eblip-69 27 64     SPACE eblip-69 27 65 had have VERB eblip-69 27 66     SPACE eblip-69 27 67 to to PART eblip-69 27 68     SPACE eblip-69 27 69 be be AUX eblip-69 27 70     SPACE eblip-69 27 71 discounted discount VERB eblip-69 27 72     SPACE eblip-69 27 73 because because SCONJ eblip-69 27 74     SPACE eblip-69 27 75 the the DET eblip-69 27 76     SPACE eblip-69 27 77 user user NOUN eblip-69 27 78     SPACE eblip-69 27 79 sessions session NOUN eblip-69 27 80     SPACE eblip-69 27 81 were be AUX eblip-69 27 82     SPACE eblip-69 27 83 artificially artificially ADV eblip-69 27 84     SPACE eblip-69 27 85 limited limited ADJ eblip-69 27 86     SPACE eblip-69 27 87 to to ADP eblip-69 27 88     SPACE eblip-69 27 89 5 5 NUM eblip-69 27 90     SPACE eblip-69 27 91 minutes minute NOUN eblip-69 27 92 , , PUNCT eblip-69 27 93     SPACE eblip-69 27 94 whereas whereas SCONJ eblip-69 27 95     SPACE eblip-69 27 96 studies study NOUN eblip-69 27 97     SPACE eblip-69 27 98 have have AUX eblip-69 27 99     SPACE eblip-69 27 100 shown show VERB eblip-69 27 101     SPACE eblip-69 27 102 that that SCONJ eblip-69 27 103     SPACE eblip-69 27 104 the the DET eblip-69 27 105     SPACE eblip-69 27 106 average average ADJ eblip-69 27 107     SPACE eblip-69 27 108 user user NOUN eblip-69 27 109     SPACE eblip-69 27 110 session session NOUN eblip-69 27 111     SPACE eblip-69 27 112 is be AUX eblip-69 27 113     SPACE eblip-69 27 114 typically typically ADV eblip-69 27 115     SPACE eblip-69 27 116 15 15 NUM eblip-69 27 117     SPACE eblip-69 27 118 minutes minute NOUN eblip-69 27 119     SPACE eblip-69 27 120 in in ADP eblip-69 27 121     SPACE eblip-69 27 122 length length NOUN eblip-69 27 123 . . PUNCT eblip-69 27 124     SPACE eblip-69 28 1 this this DET eblip-69 28 2     SPACE eblip-69 28 3 factor factor NOUN eblip-69 28 4     SPACE eblip-69 28 5 presumably presumably ADV eblip-69 28 6     SPACE eblip-69 28 7 affected affect VERB eblip-69 28 8     SPACE eblip-69 28 9 the the DET eblip-69 28 10     SPACE eblip-69 28 11 way way NOUN eblip-69 28 12     SPACE eblip-69 28 13 the the DET eblip-69 28 14     SPACE eblip-69 28 15 search search NOUN eblip-69 28 16     SPACE eblip-69 28 17 engine engine NOUN eblip-69 28 18     SPACE eblip-69 28 19 was be AUX eblip-69 28 20     SPACE eblip-69 28 21 used use VERB eblip-69 28 22     SPACE eblip-69 28 23 and and CCONJ eblip-69 28 24     SPACE eblip-69 28 25 therefore therefore ADV eblip-69 28 26     SPACE eblip-69 28 27 the the DET eblip-69 28 28     SPACE eblip-69 28 29 results result NOUN eblip-69 28 30     SPACE eblip-69 28 31 were be AUX eblip-69 28 32     SPACE eblip-69 28 33 skewed skewed ADJ eblip-69 28 34 . . PUNCT eblip-69 28 35     SPACE eblip-69 28 36 while while SCONJ eblip-69 28 37     SPACE eblip-69 28 38 the the DET eblip-69 28 39     SPACE eblip-69 28 40 authors author NOUN eblip-69 28 41     SPACE eblip-69 28 42 do do AUX eblip-69 28 43     SPACE eblip-69 28 44 identify identify VERB eblip-69 28 45     SPACE eblip-69 28 46 this this DET eblip-69 28 47     SPACE eblip-69 28 48 variable variable NOUN eblip-69 28 49 , , PUNCT eblip-69 28 50     SPACE eblip-69 28 51 one one NUM eblip-69 28 52     SPACE eblip-69 28 53 wonders wonder NOUN eblip-69 28 54     SPACE eblip-69 28 55 if if SCONJ eblip-69 28 56     SPACE eblip-69 28 57 there there PRON eblip-69 28 58     SPACE eblip-69 28 59 are be AUX eblip-69 28 60     SPACE eblip-69 28 61 other other ADJ eblip-69 28 62     SPACE eblip-69 28 63 variables variable NOUN eblip-69 28 64     SPACE eblip-69 28 65 in in ADP eblip-69 28 66     SPACE eblip-69 28 67 the the DET eblip-69 28 68     SPACE eblip-69 28 69 studies study NOUN eblip-69 28 70     SPACE eblip-69 28 71 that that PRON eblip-69 28 72     SPACE eblip-69 28 73 may may AUX eblip-69 28 74     SPACE eblip-69 28 75 have have AUX eblip-69 28 76     SPACE eblip-69 28 77 also also ADV eblip-69 28 78     SPACE eblip-69 28 79 had have VERB eblip-69 28 80     SPACE eblip-69 28 81 an an DET eblip-69 28 82     SPACE eblip-69 28 83 impact impact NOUN eblip-69 28 84     SPACE eblip-69 28 85 on on ADP eblip-69 28 86     SPACE eblip-69 28 87 the the DET eblip-69 28 88     SPACE eblip-69 28 89 study study NOUN eblip-69 28 90     SPACE eblip-69 28 91 results result NOUN eblip-69 28 92 . . PUNCT eblip-69 28 93     SPACE eblip-69 29 1 it it PRON eblip-69 29 2     SPACE eblip-69 29 3 is be AUX eblip-69 29 4     SPACE eblip-69 29 5 unclear unclear ADJ eblip-69 29 6     SPACE eblip-69 29 7 whether whether SCONJ eblip-69 29 8     SPACE eblip-69 29 9 or or CCONJ eblip-69 29 10     SPACE eblip-69 29 11 not not PART eblip-69 29 12     SPACE eblip-69 29 13 the the DET eblip-69 29 14     SPACE eblip-69 29 15 authors author NOUN eblip-69 29 16     SPACE eblip-69 29 17 have have AUX eblip-69 29 18     SPACE eblip-69 29 19 investigated investigate VERB eblip-69 29 20     SPACE eblip-69 29 21 the the DET eblip-69 29 22     SPACE eblip-69 29 23 evidence evidence NOUN eblip-69 29 24     SPACE eblip-69 29 25 based base VERB eblip-69 29 26     SPACE eblip-69 29 27 library library NOUN eblip-69 29 28     SPACE eblip-69 29 29 and and CCONJ eblip-69 29 30     SPACE eblip-69 29 31 information information NOUN eblip-69 29 32     SPACE eblip-69 29 33 practice practice NOUN eblip-69 29 34     SPACE eblip-69 29 35 2006 2006 NUM eblip-69 29 36 , , PUNCT eblip-69 29 37     SPACE eblip-69 29 38 1:3 1:3 NUM eblip-69 29 39             SPACE eblip-69 29 40 69 69 NUM eblip-69 29 41 impacts impact NOUN eblip-69 29 42     SPACE eblip-69 29 43 of of ADP eblip-69 29 44     SPACE eblip-69 29 45 other other ADJ eblip-69 29 46     SPACE eblip-69 29 47 potential potential ADJ eblip-69 29 48     SPACE eblip-69 29 49 variations variation NOUN eblip-69 29 50     SPACE eblip-69 29 51 among among ADP eblip-69 29 52     SPACE eblip-69 29 53 the the DET eblip-69 29 54     SPACE eblip-69 29 55 different different ADJ eblip-69 29 56     SPACE eblip-69 29 57 studies study NOUN eblip-69 29 58 , , PUNCT eblip-69 29 59     SPACE eblip-69 29 60 as as SCONJ eblip-69 29 61     SPACE eblip-69 29 62 this this DET eblip-69 29 63     SPACE eblip-69 29 64 example example NOUN eblip-69 29 65     SPACE eblip-69 29 66 is be AUX eblip-69 29 67     SPACE eblip-69 29 68 one one NOUN eblip-69 29 69     SPACE eblip-69 29 70 of of ADP eblip-69 29 71     SPACE eblip-69 29 72 the the DET eblip-69 29 73     SPACE eblip-69 29 74 few few ADJ eblip-69 29 75     SPACE eblip-69 29 76 described describe VERB eblip-69 29 77 . . PUNCT eblip-69 29 78           SPACE eblip-69 30 1 in in ADP eblip-69 30 2     SPACE eblip-69 30 3 some some DET eblip-69 30 4     SPACE eblip-69 30 5 cases case NOUN eblip-69 30 6 , , PUNCT eblip-69 30 7     SPACE eblip-69 30 8 the the DET eblip-69 30 9     SPACE eblip-69 30 10 conclusions conclusion NOUN eblip-69 30 11     SPACE eblip-69 30 12 drawn draw VERB eblip-69 30 13     SPACE eblip-69 30 14 from from ADP eblip-69 30 15     SPACE eblip-69 30 16 the the DET eblip-69 30 17     SPACE eblip-69 30 18 results result NOUN eblip-69 30 19     SPACE eblip-69 30 20 do do AUX eblip-69 30 21     SPACE eblip-69 30 22 not not PART eblip-69 30 23     SPACE eblip-69 30 24 appear appear VERB eblip-69 30 25     SPACE eblip-69 30 26 to to PART eblip-69 30 27     SPACE eblip-69 30 28 have have VERB eblip-69 30 29     SPACE eblip-69 30 30 a a DET eblip-69 30 31     SPACE eblip-69 30 32 base base NOUN eblip-69 30 33 . . PUNCT eblip-69 30 34     SPACE eblip-69 31 1 the the DET eblip-69 31 2     SPACE eblip-69 31 3 article article NOUN eblip-69 31 4     SPACE eblip-69 31 5 states state NOUN eblip-69 31 6     SPACE eblip-69 31 7 that that SCONJ eblip-69 31 8     SPACE eblip-69 31 9 “ " PUNCT eblip-69 31 10 [ [ X eblip-69 31 11 u]sers u]ser NOUN eblip-69 31 12     SPACE eblip-69 31 13 have have VERB eblip-69 31 14     SPACE eblip-69 31 15 a a DET eblip-69 31 16     SPACE eblip-69 31 17 low low ADJ eblip-69 31 18     SPACE eblip-69 31 19 tolerance tolerance NOUN eblip-69 31 20     SPACE eblip-69 31 21 of of ADP eblip-69 31 22     SPACE eblip-69 31 23 viewing view VERB eblip-69 31 24     SPACE eblip-69 31 25 any any DET eblip-69 31 26     SPACE eblip-69 31 27 results result NOUN eblip-69 31 28     SPACE eblip-69 31 29 past past ADP eblip-69 31 30     SPACE eblip-69 31 31 the the DET eblip-69 31 32     SPACE eblip-69 31 33 first first ADJ eblip-69 31 34     SPACE eblip-69 31 35 page page NOUN eblip-69 31 36 . . PUNCT eblip-69 31 37     SPACE eblip-69 32 1 they they PRON eblip-69 32 2     SPACE eblip-69 32 3 prefer prefer VERB eblip-69 32 4     SPACE eblip-69 32 5 to to PART eblip-69 32 6     SPACE eblip-69 32 7 reformulate reformulate VERB eblip-69 32 8     SPACE eblip-69 32 9 the the DET eblip-69 32 10     SPACE eblip-69 32 11 web web NOUN eblip-69 32 12     SPACE eblip-69 32 13 query query NOUN eblip-69 32 14     SPACE eblip-69 32 15 rather rather ADV eblip-69 32 16     SPACE eblip-69 32 17 than than ADP eblip-69 32 18     SPACE eblip-69 32 19 wade wade PROPN eblip-69 32 20     SPACE eblip-69 32 21 through through ADP eblip-69 32 22     SPACE eblip-69 32 23 result result VERB eblip-69 32 24     SPACE eblip-69 32 25 listings listing NOUN eblip-69 32 26 . . PUNCT eblip-69 32 27 ” " PUNCT eblip-69 32 28       SPACE eblip-69 33 1 yet yet ADV eblip-69 33 2     SPACE eblip-69 33 3 the the DET eblip-69 33 4     SPACE eblip-69 33 5 percentages percentage NOUN eblip-69 33 6     SPACE eblip-69 33 7 of of ADP eblip-69 33 8     SPACE eblip-69 33 9 single single ADJ eblip-69 33 10     SPACE eblip-69 33 11 query query NOUN eblip-69 33 12     SPACE eblip-69 33 13 sessions session NOUN eblip-69 33 14     SPACE eblip-69 33 15 are be AUX eblip-69 33 16     SPACE eblip-69 33 17 almost almost ADV eblip-69 33 18     SPACE eblip-69 33 19 as as ADP eblip-69 33 20     SPACE eblip-69 33 21 high high NOUN eblip-69 33 22     SPACE eblip-69 33 23 as as ADP eblip-69 33 24     SPACE eblip-69 33 25 those those PRON eblip-69 33 26     SPACE eblip-69 33 27 of of ADP eblip-69 33 28     SPACE eblip-69 33 29 the the DET eblip-69 33 30     SPACE eblip-69 33 31 single‐page single‐page NOUN eblip-69 33 32     SPACE eblip-69 33 33 views view NOUN eblip-69 33 34 . . PUNCT eblip-69 33 35           SPACE eblip-69 33 36 this this DET eblip-69 33 37     SPACE eblip-69 33 38 study study NOUN eblip-69 33 39     SPACE eblip-69 33 40 does do AUX eblip-69 33 41     SPACE eblip-69 33 42 shed shed VERB eblip-69 33 43     SPACE eblip-69 33 44 some some DET eblip-69 33 45     SPACE eblip-69 33 46 light light NOUN eblip-69 33 47     SPACE eblip-69 33 48 on on ADP eblip-69 33 49     SPACE eblip-69 33 50 the the DET eblip-69 33 51     SPACE eblip-69 33 52 changes change NOUN eblip-69 33 53     SPACE eblip-69 33 54 in in ADP eblip-69 33 55     SPACE eblip-69 33 56 how how SCONJ eblip-69 33 57     SPACE eblip-69 33 58 users user NOUN eblip-69 33 59     SPACE eblip-69 33 60 are be AUX eblip-69 33 61     SPACE eblip-69 33 62 using use VERB eblip-69 33 63     SPACE eblip-69 33 64 search search NOUN eblip-69 33 65     SPACE eblip-69 33 66 engines engine NOUN eblip-69 33 67 . . PUNCT eblip-69 33 68     SPACE eblip-69 34 1 in in ADP eblip-69 34 2     SPACE eblip-69 34 3 some some DET eblip-69 34 4     SPACE eblip-69 34 5 cases case NOUN eblip-69 34 6 , , PUNCT eblip-69 34 7     SPACE eblip-69 34 8 the the DET eblip-69 34 9     SPACE eblip-69 34 10 authors author NOUN eblip-69 34 11     SPACE eblip-69 34 12 have have AUX eblip-69 34 13     SPACE eblip-69 34 14 found find VERB eblip-69 34 15     SPACE eblip-69 34 16 little little ADJ eblip-69 34 17     SPACE eblip-69 34 18 change change NOUN eblip-69 34 19     SPACE eblip-69 34 20 in in ADP eblip-69 34 21     SPACE eblip-69 34 22 the the DET eblip-69 34 23     SPACE eblip-69 34 24 patterns pattern NOUN eblip-69 34 25     SPACE eblip-69 34 26 of of ADP eblip-69 34 27     SPACE eblip-69 34 28 search search NOUN eblip-69 34 29     SPACE eblip-69 34 30 engine engine NOUN eblip-69 34 31     SPACE eblip-69 34 32 use use NOUN eblip-69 34 33 , , PUNCT eblip-69 34 34     SPACE eblip-69 34 35 which which PRON eblip-69 34 36 , , PUNCT eblip-69 34 37     SPACE eblip-69 34 38 although although SCONJ eblip-69 34 39     SPACE eblip-69 34 40 not not PART eblip-69 34 41     SPACE eblip-69 34 42 as as ADP eblip-69 34 43     SPACE eblip-69 34 44 exciting exciting ADJ eblip-69 34 45     SPACE eblip-69 34 46 as as ADP eblip-69 34 47     SPACE eblip-69 34 48 discovering discover VERB eblip-69 34 49     SPACE eblip-69 34 50 a a DET eblip-69 34 51     SPACE eblip-69 34 52 change change NOUN eblip-69 34 53 , , PUNCT eblip-69 34 54     SPACE eblip-69 34 55 is be AUX eblip-69 34 56     SPACE eblip-69 34 57 just just ADV eblip-69 34 58     SPACE eblip-69 34 59 as as ADP eblip-69 34 60     SPACE eblip-69 34 61 important important ADJ eblip-69 34 62     SPACE eblip-69 34 63 to to PART eblip-69 34 64     SPACE eblip-69 34 65 report report VERB eblip-69 34 66 . . PUNCT eblip-69 34 67     SPACE eblip-69 35 1 although although SCONJ eblip-69 35 2     SPACE eblip-69 35 3 more more ADJ eblip-69 35 4     SPACE eblip-69 35 5 research research NOUN eblip-69 35 6     SPACE eblip-69 35 7 is be AUX eblip-69 35 8     SPACE eblip-69 35 9 needed need VERB eblip-69 35 10     SPACE eblip-69 35 11 to to PART eblip-69 35 12     SPACE eblip-69 35 13 better well ADV eblip-69 35 14     SPACE eblip-69 35 15 understand understand VERB eblip-69 35 16     SPACE eblip-69 35 17 the the DET eblip-69 35 18     SPACE eblip-69 35 19 variables variable NOUN eblip-69 35 20     SPACE eblip-69 35 21 and and CCONJ eblip-69 35 22     SPACE eblip-69 35 23 comparisons comparison NOUN eblip-69 35 24     SPACE eblip-69 35 25 among among ADP eblip-69 35 26     SPACE eblip-69 35 27 different different ADJ eblip-69 35 28     SPACE eblip-69 35 29 search search NOUN eblip-69 35 30     SPACE eblip-69 35 31 engine engine NOUN eblip-69 35 32     SPACE eblip-69 35 33 studies study NOUN eblip-69 35 34 , , PUNCT eblip-69 35 35     SPACE eblip-69 35 36 this this DET eblip-69 35 37     SPACE eblip-69 35 38 study study NOUN eblip-69 35 39     SPACE eblip-69 35 40 presents present VERB eblip-69 35 41     SPACE eblip-69 35 42 research research NOUN eblip-69 35 43     SPACE eblip-69 35 44 that that PRON eblip-69 35 45     SPACE eblip-69 35 46 is be AUX eblip-69 35 47     SPACE eblip-69 35 48 useful useful ADJ eblip-69 35 49     SPACE eblip-69 35 50 to to ADP eblip-69 35 51     SPACE eblip-69 35 52 the the DET eblip-69 35 53     SPACE eblip-69 35 54 library library NOUN eblip-69 35 55     SPACE eblip-69 35 56 and and CCONJ eblip-69 35 57     SPACE eblip-69 35 58 information information NOUN eblip-69 35 59     SPACE eblip-69 35 60 science science NOUN eblip-69 35 61     SPACE eblip-69 35 62 profession profession NOUN eblip-69 35 63 . . PUNCT eblip-69 35 64     SPACE eblip-69 36 1 certainly certainly ADV eblip-69 36 2 , , PUNCT eblip-69 36 3     SPACE eblip-69 36 4 the the DET eblip-69 36 5     SPACE eblip-69 36 6 trends trend NOUN eblip-69 36 7     SPACE eblip-69 36 8 in in ADP eblip-69 36 9     SPACE eblip-69 36 10 search search NOUN eblip-69 36 11     SPACE eblip-69 36 12 topics topic NOUN eblip-69 36 13     SPACE eblip-69 36 14 are be AUX eblip-69 36 15     SPACE eblip-69 36 16 useful useful ADJ eblip-69 36 17     SPACE eblip-69 36 18 for for ADP eblip-69 36 19     SPACE eblip-69 36 20 reference reference NOUN eblip-69 36 21     SPACE eblip-69 36 22 and and CCONJ eblip-69 36 23     SPACE eblip-69 36 24 collection collection NOUN eblip-69 36 25     SPACE eblip-69 36 26 planning planning NOUN eblip-69 36 27 , , PUNCT eblip-69 36 28     SPACE eblip-69 36 29 but but CCONJ eblip-69 36 30     SPACE eblip-69 36 31 the the DET eblip-69 36 32     SPACE eblip-69 36 33 use use NOUN eblip-69 36 34     SPACE eblip-69 36 35 of of ADP eblip-69 36 36     SPACE eblip-69 36 37 one‐term one‐term NOUN eblip-69 36 38     SPACE eblip-69 36 39 queries query NOUN eblip-69 36 40     SPACE eblip-69 36 41 among among ADP eblip-69 36 42     SPACE eblip-69 36 43 search search NOUN eblip-69 36 44     SPACE eblip-69 36 45 engine engine NOUN eblip-69 36 46     SPACE eblip-69 36 47 users user NOUN eblip-69 36 48     SPACE eblip-69 36 49 might might AUX eblip-69 36 50     SPACE eblip-69 36 51 also also ADV eblip-69 36 52     SPACE eblip-69 36 53 give give VERB eblip-69 36 54     SPACE eblip-69 36 55 some some DET eblip-69 36 56     SPACE eblip-69 36 57 insight insight NOUN eblip-69 36 58     SPACE eblip-69 36 59 as as ADP eblip-69 36 60     SPACE eblip-69 36 61 to to ADP eblip-69 36 62     SPACE eblip-69 36 63 how how SCONJ eblip-69 36 64     SPACE eblip-69 36 65 library library NOUN eblip-69 36 66     SPACE eblip-69 36 67 users user NOUN eblip-69 36 68     SPACE eblip-69 36 69 approach approach NOUN eblip-69 36 70     SPACE eblip-69 36 71 reference reference NOUN eblip-69 36 72     SPACE eblip-69 36 73 questions question NOUN eblip-69 36 74 . . PUNCT eblip-69 36 75                                                                           SPACE eblip-69 36 76 knowledge knowledge NOUN eblip-69 36 77     SPACE eblip-69 36 78 of of ADP eblip-69 36 79     SPACE eblip-69 36 80 users user NOUN eblip-69 36 81 ’ ' PUNCT eblip-69 36 82     SPACE eblip-69 36 83 search search NOUN eblip-69 36 84     SPACE eblip-69 36 85 techniques technique NOUN eblip-69 36 86     SPACE eblip-69 36 87 can can AUX eblip-69 36 88     SPACE eblip-69 36 89 also also ADV eblip-69 36 90     SPACE eblip-69 36 91 be be AUX eblip-69 36 92     SPACE eblip-69 36 93 beneficial beneficial ADJ eblip-69 36 94     SPACE eblip-69 36 95 for for ADP eblip-69 36 96     SPACE eblip-69 36 97 those those PRON eblip-69 36 98     SPACE eblip-69 36 99 providing provide VERB eblip-69 36 100     SPACE eblip-69 36 101 library library NOUN eblip-69 36 102     SPACE eblip-69 36 103 instruction instruction NOUN eblip-69 36 104 . . PUNCT eblip-69 36 105     SPACE eblip-69 36 106 knowing know VERB eblip-69 36 107     SPACE eblip-69 36 108 that that SCONJ eblip-69 36 109     SPACE eblip-69 36 110 users user NOUN eblip-69 36 111     SPACE eblip-69 36 112 are be AUX eblip-69 36 113     SPACE eblip-69 36 114 typically typically ADV eblip-69 36 115     SPACE eblip-69 36 116 viewing view VERB eblip-69 36 117     SPACE eblip-69 36 118 only only ADV eblip-69 36 119     SPACE eblip-69 36 120 the the DET eblip-69 36 121     SPACE eblip-69 36 122 first first ADJ eblip-69 36 123     SPACE eblip-69 36 124 page page NOUN eblip-69 36 125     SPACE eblip-69 36 126 of of ADP eblip-69 36 127     SPACE eblip-69 36 128 search search NOUN eblip-69 36 129     SPACE eblip-69 36 130 results result NOUN eblip-69 36 131 , , PUNCT eblip-69 36 132     SPACE eblip-69 36 133 for for ADP eblip-69 36 134     SPACE eblip-69 36 135 example example NOUN eblip-69 36 136 , , PUNCT eblip-69 36 137     SPACE eblip-69 36 138 indicates indicate VERB eblip-69 36 139     SPACE eblip-69 36 140 that that SCONJ eblip-69 36 141     SPACE eblip-69 36 142 instructors instructor NOUN eblip-69 36 143     SPACE eblip-69 36 144 should should AUX eblip-69 36 145     SPACE eblip-69 36 146 be be AUX eblip-69 36 147     SPACE eblip-69 36 148 educating educate VERB eblip-69 36 149     SPACE eblip-69 36 150 users user NOUN eblip-69 36 151     SPACE eblip-69 36 152 on on ADP eblip-69 36 153     SPACE eblip-69 36 154 how how SCONJ eblip-69 36 155     SPACE eblip-69 36 156 to to PART eblip-69 36 157     SPACE eblip-69 36 158 identify identify VERB eblip-69 36 159     SPACE eblip-69 36 160 and and CCONJ eblip-69 36 161     SPACE eblip-69 36 162 discern discern NOUN eblip-69 36 163     SPACE eblip-69 36 164 the the DET eblip-69 36 165     SPACE eblip-69 36 166 legitimate legitimate ADJ eblip-69 36 167     SPACE eblip-69 36 168 sources source NOUN eblip-69 36 169     SPACE eblip-69 36 170 that that PRON eblip-69 36 171     SPACE eblip-69 36 172 may may AUX eblip-69 36 173     SPACE eblip-69 36 174 be be AUX eblip-69 36 175     SPACE eblip-69 36 176 contained contain VERB eblip-69 36 177     SPACE eblip-69 36 178 on on ADP eblip-69 36 179     SPACE eblip-69 36 180 the the DET eblip-69 36 181     SPACE eblip-69 36 182 page page NOUN eblip-69 36 183 . . PUNCT eblip-69 36 184     SPACE eblip-69 37 1 as as ADV eblip-69 37 2     SPACE eblip-69 37 3 well well ADV eblip-69 37 4 , , PUNCT eblip-69 37 5     SPACE eblip-69 37 6 knowing know VERB eblip-69 37 7     SPACE eblip-69 37 8 that that SCONJ eblip-69 37 9     SPACE eblip-69 37 10 few few ADJ eblip-69 37 11     SPACE eblip-69 37 12 users user NOUN eblip-69 37 13     SPACE eblip-69 37 14 are be AUX eblip-69 37 15     SPACE eblip-69 37 16 using use VERB eblip-69 37 17     SPACE eblip-69 37 18 advanced advanced ADJ eblip-69 37 19     SPACE eblip-69 37 20 queries query NOUN eblip-69 37 21 , , PUNCT eblip-69 37 22     SPACE eblip-69 37 23 should should AUX eblip-69 37 24     SPACE eblip-69 37 25 instructors instructor NOUN eblip-69 37 26     SPACE eblip-69 37 27 put put VERB eblip-69 37 28     SPACE eblip-69 37 29 more more ADJ eblip-69 37 30     SPACE eblip-69 37 31 emphasis emphasis NOUN eblip-69 37 32     SPACE eblip-69 37 33 on on ADP eblip-69 37 34     SPACE eblip-69 37 35 teaching teach VERB eblip-69 37 36     SPACE eblip-69 37 37 the the DET eblip-69 37 38     SPACE eblip-69 37 39 use use NOUN eblip-69 37 40     SPACE eblip-69 37 41 of of ADP eblip-69 37 42     SPACE eblip-69 37 43 boolean boolean ADJ eblip-69 37 44     SPACE eblip-69 37 45 operators operator NOUN eblip-69 37 46     SPACE eblip-69 37 47 ‐ ‐ NOUN eblip-69 37 48     SPACE eblip-69 37 49 or or CCONJ eblip-69 37 50     SPACE eblip-69 37 51 should should AUX eblip-69 37 52     SPACE eblip-69 37 53 boolean boolean ADJ eblip-69 37 54     SPACE eblip-69 37 55 searching searching NOUN eblip-69 37 56     SPACE eblip-69 37 57 be be AUX eblip-69 37 58     SPACE eblip-69 37 59 taught teach VERB eblip-69 37 60     SPACE eblip-69 37 61 at at ADP eblip-69 37 62     SPACE eblip-69 37 63 all all PRON eblip-69 37 64 ? ? VERB eblip-69 37 65     SPACE eblip-69 37 66 similarly similarly ADV eblip-69 37 67 , , PUNCT eblip-69 37 68     SPACE eblip-69 37 69 for for ADP eblip-69 37 70     SPACE eblip-69 37 71 those those DET eblip-69 37 72     SPACE eblip-69 37 73 designing design VERB eblip-69 37 74     SPACE eblip-69 37 75 library library NOUN eblip-69 37 76     SPACE eblip-69 37 77 search search NOUN eblip-69 37 78     SPACE eblip-69 37 79 interfaces interface NOUN eblip-69 37 80 , , PUNCT eblip-69 37 81     SPACE eblip-69 37 82 knowing know VERB eblip-69 37 83     SPACE eblip-69 37 84 that that SCONJ eblip-69 37 85     SPACE eblip-69 37 86 few few ADJ eblip-69 37 87     SPACE eblip-69 37 88 users user NOUN eblip-69 37 89     SPACE eblip-69 37 90 use use VERB eblip-69 37 91     SPACE eblip-69 37 92 boolean boolean ADJ eblip-69 37 93     SPACE eblip-69 37 94 operators operator NOUN eblip-69 37 95     SPACE eblip-69 37 96 may may AUX eblip-69 37 97     SPACE eblip-69 37 98 mean mean VERB eblip-69 37 99     SPACE eblip-69 37 100 that that SCONJ eblip-69 37 101     SPACE eblip-69 37 102 there there PRON eblip-69 37 103     SPACE eblip-69 37 104 is be AUX eblip-69 37 105     SPACE eblip-69 37 106 less less ADJ eblip-69 37 107     SPACE eblip-69 37 108 need need NOUN eblip-69 37 109     SPACE eblip-69 37 110 to to PART eblip-69 37 111     SPACE eblip-69 37 112 build build VERB eblip-69 37 113     SPACE eblip-69 37 114 advanced advanced ADJ eblip-69 37 115     SPACE eblip-69 37 116 search search NOUN eblip-69 37 117     SPACE eblip-69 37 118 capabilities capability NOUN eblip-69 37 119     SPACE eblip-69 37 120 into into ADP eblip-69 37 121     SPACE eblip-69 37 122 their their PRON eblip-69 37 123     SPACE eblip-69 37 124 features feature NOUN eblip-69 37 125 , , PUNCT eblip-69 37 126     SPACE eblip-69 37 127 or or CCONJ eblip-69 37 128     SPACE eblip-69 37 129 perhaps perhaps ADV eblip-69 37 130     SPACE eblip-69 37 131 a a DET eblip-69 37 132     SPACE eblip-69 37 133 greater great ADJ eblip-69 37 134     SPACE eblip-69 37 135 need need NOUN eblip-69 37 136     SPACE eblip-69 37 137 to to PART eblip-69 37 138     SPACE eblip-69 37 139 simplify simplify VERB eblip-69 37 140     SPACE eblip-69 37 141 them they PRON eblip-69 37 142 . . PUNCT eblip-69 37 143             SPACE